Danis-Weber classification of lateral malleolus fractures: Type A: fracture of the lateral malleolus distal to the syndesmosis (usually stable). Type B: fracture of the fibula at the level of the syndesmosis (variable stability). Type C: fracture of the fibula proximal to the syndesmosis (unstable)
Mikael Häggström, M.D. Consent note: Written informed consent was obtained from the individual, including online publication. Reference: Practical Fracture Treatment (Fifth ed.), p. 382 ISBN: 978-0-443-06876-8., CC0, https://commons.wikimedia.org/w/index.php?curid=80400419
| Danis-Weber Type | Type A | Type B | Type C |
|---|---|---|---|
| Description | Infrasyndesmotic | Transsyndesmotic | Suprasyndesmotic |
| Tibiofibular syndesmosis | Intact | Intact or partially torn | Disrupted |
| Medial malleolus | Fractured | Fractured | Fractured |
| Deltoid ligament | Intact | May be torn | Torn |
| Stability | Stable | Variable | Unstable |
